Car Digital Oil Quality Detector Gas Derv Fluid Analyzer Portable Dies Engine Check Tester Density Meter Universal High brand new and high quality Detect the pollution level of oil in the car and estimate whether it needs to be replaced. The oil should be replaced based on driving 5000 kilometers presently, but the new and old degree of for cars, the drivers' different habits will affect the working life of the engine oil. The product uses the optical principle to detect the oil and to accurately determine the oil contamination situation. Features: Engine Oil Detector Operation 1. Press the power button for two seconds to turn on the detection device. 2. Press the (S) button on the right to switch to the oil detection state. 3. Pull out the oil level gauge of engine and insert the detector into the hole of gauge. 4. Then pull the trigger button on the handle and wait for 10 seconds and then the test result shows on the LCD screen. If the testing oil is new, the result should be showed 100.0%. 5. ( for W ) button is using to reset. In the testing process, the probe must be oiled in order to test the accurate parameters. Wait for 10 testing seconds and watch if there is an alarm sound. If there is no alarm sound, the oil can be used. If there is an alarm sound, the oil should be replaced in for time. Specification: Type: Car Oil Detector Material: Plastic Applications: Car Oil Gas Analysis Features: Car Oil Quality Detector, Derv Fluid Analyzer, Portable Dies Engine, Density Meter, Universal High Precision, Multipurpose Tools Dimension: app.1.8x17x4.2cm/0.71x6.69x1.65in Color: Orange Quantity: 1 Pc Note: 1.Pull the trigger button on the handle when the machine turned on and (000.0% or 100.0%) is showed on the LCD screen which is normal. 2.If the machine can'for t be turned on when the battery is installed, you should pay attention whether the battery is reversed. 3.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 4.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 Pc x Car Oil Detector